25857221

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{5087}}^1$

素因数の和:5140

約数の個数: 16

約数和(自身を含む): 30772224

約数和(自身を除く): 4915003

約数列:

[1, 13, 17, 23, 221, 299, 391, 5083, 5087, 66131, 86479, 117001, 1124227, 1521013, 1989017, 25857221]

約数ペア:

[(1, 25857221), (13, 1989017), (17, 1521013), (23, 1124227), (221, 117001), (299, 86479), (391, 66131), (5083, 5087)]